Weather Forecast and Radar for Decatur, Alabama

Weather in Decatur, AL

Decatur, Alabama experiences a humid subtropical climate with mild winters and hot, humid summers. The average high temperature in December is 59 degrees Fahrenheit, with an average low of 39 degrees. January is a bit cooler, with an average high of 54 degrees and an average low of 34 degrees. February sees a slight increase in temperatures, with an average high of 57 degrees and an average low of 37 degrees.

In the spring, temperatures in Decatur begin to warm up as March brings an average high of 64 degrees and an average low of 43 degrees. April is a bit warmer, with an average high of 73 degrees and an average low of 51 degrees. May is even warmer, with an average high of 81 degrees and an average low of 59 degrees.

As summer approaches, temperatures begin to soar in Decatur. June sees an average high of 88 degrees and an average low of 68 degrees. July is the hottest month, with an average high of 91 degrees and an average low of 71 degrees. August is slightly cooler, with an average high of 89 degrees and an average low of 69 degrees.

The weather begins to cool off as fall approaches. September has an average high of 81 degrees and an average low of 60 degrees. October brings cooler temperatures, with an average high of 71 degrees and an average low of 49 degrees. November is the coolest month, with an average high of 61 degrees and an average low of 40 degrees.

Fast Facts About Decatur, AL

As of 2020, the city population is 69710.

Major Cities Nearby Decatur, AL

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Decatur, Alabama.